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US3494350A - Smooth top gas range with regenerator - Google Patents

Smooth top gas range with regenerator Download PDF

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Publication number
US3494350A
US3494350A US726318A US3494350DA US3494350A US 3494350 A US3494350 A US 3494350A US 726318 A US726318 A US 726318A US 3494350D A US3494350D A US 3494350DA US 3494350 A US3494350 A US 3494350A
Authority
US
United States
Prior art keywords
burners
regenerator
box
air
wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US726318A
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English (en)
Inventor
Richard L Perl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
White Consolidated Industries Inc
Original Assignee
Tappan Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tappan Co filed Critical Tappan Co
Application granted granted Critical
Publication of US3494350A publication Critical patent/US3494350A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C99/00—Subject-matter not provided for in other groups of this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/04—Stoves or ranges for gaseous fuels with heat produced wholly or partly by a radiant body, e.g. by a perforated plate
    • F24C3/047—Ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2700/00—Special arrangements for combustion apparatus using fluent fuel
    • F23C2700/04—Combustion apparatus using gaseous fuel
    • F23C2700/043—Combustion apparatus using gaseous fuel for surface combustion

Definitions

  • Another object is to provide such a range or top in which a heat regenerator is incorporated to effect transfer of heat energy from the exhaust gases to the primary air supply to the burners for cooling of the former and preheating of the latter.
  • FIG. 1 is a perspective view of a smooth top gas range in accordance with the present invention
  • FIG. 2 is a first transverse vertical section the plane of which is indicated by the line 22 in FIG. 1;
  • FIG. 3 is a further transverse section indicated by the line 3-3 in FIG. 1.
  • the illustrated cooking top which may be part of a free-standing range or a separate appliance, comprises a metal box 10 having a flanged top opening 11 in which a plate 12 is supported and fully closes the opening.
  • This plate is preferably made of a heat resistant glass which will transmit infrared radiation, but as will appear, the choice of material for the same is not a critical factor in the present improvements.
  • the box contains four infrared burner units 13-16 in a usual spaced array respectively for heating utensils and the like supported in register therewith on the top plate 12.
  • the burners are the same and are shown as of a type comprising a cylindrical stepped body 17 in which a generally concave screen 18 is shown schematically as supported at an intermediate elevation, the chamber 19 beneath the screen receiving the fuel-air mixture distributively to flow upwardly through the screen and be combusted.
  • Each has a spark ignitor 20 at its upper combustion chamber 21, also a known feature. It will be understood that a complete screen burner will ordinarily comprise multiple screen elements, and it will become clear that other forms and types of infrared burners can equally be employed in the combination.
  • Venturi mixing tubes 2225 extend, respectively, from bottom central apertures of the burners forwardly to a manifold 26 which extends horizontally across substantially the full width of the box closely behind the front wall 27.
  • the manifold has openings 28 coincident with the ends of the venturi tubes and receives primary air at a top center inlet 29 from a supply duct 30 in a manner to be more fully described below.
  • the gaseous fuel supplied to the unit is directed through a pipe 31 having a length 32 which is coextensive with the manifold 26 and between the same and the front wall 27.
  • a gas control valve 33 having an inlet connection 34 to the gas supply pipe 31 and a controllable orifice end 35 within the mouth of the associated venturi, the valve body extending through the manifold 26 and a stem 36 projecting through the box front wall 27 and having a knob 37 mounted thereon for manual adjust ment of the valving.
  • the specific form of the valve can vary, with the one shown being the type in which rotation of the stem causes a needle 38 to move axially and variably open the orifice.
  • valve mechanism should include additionally means for coincident opening and closing of the manifold opening 28 to the particular venturi, and such means is shown as a shutter 39 which will also move axially upon adjustment of the valve, in the exaggerated manner indicated by the double-headed arrow in FIG. 2. It will be appreciated, accordingly, that each burner normally will be isolated from both the gas and air supplies.
  • the supply of primary air includes the noted duct 30 at the manifold inlet 29 and this duct extends to the regenerator assembly designated generally by reference numeral 40.
  • Such assembly comprises a vertical cylindrical shell 41 in which a heat exchanger wheel or drum 42 is mounted for rotation on a vertical drive shaft 43.
  • the wheel body is formed of a heat resistant material with a multiplicity of small axial passages, for example, by winding a strip of corrugated asbestos paper impregnated with sodium silicate solution to cylindrical form.
  • a top flow plate 44 is disposed adjacent the upper end of the wheel 42 in the form of a ring with a diametrical divider strip 45, thereby defining top outlet and inlet openings 46 and 47, respectively, roughly coincident with halves of the wheel, the outlet opening being at the front.
  • a collector shroud 48 encloses the top outlet opening 46 and communicates with the duct 30 to the supply manifold 26.
  • a similarly formed bottom flow plate 49 is arranged adjacent the lower end of the wheel 42 and defines comparable, but relatively reversed, bottom inlet and outlet openings 50 and 51, respectively.
  • An inlet air duct 52 extends from this bottom inlet 50 to the wheel to an ambient air intake 53 at the bottom rear of the box and includes, at the latter, a blower 54 driven by an electric motor 55.
  • This electric motor serves also to drive the Wheel 42 by a chain 56 interconnecting its shaft and the wheel shaft 43 through suitable speed reduction gearing 57 to provide a wheel speed on the order of from 4 to 8 rpm. Accordingly, with the blower 54 operative, air is drawn in from the room in which the unit is located and caused to flow through approximately one-half of the rotating wheel to the burner supply manifold, as shown by the dashed arrows.
  • the exhaust part of the air system includes two collector duct sections 58, 59 extending from the regenerator assembly 40 respectively to opposite sides from openings 60 in the shell 41 above the top end of the wheel and the top inlet opening 47 to the same.
  • the collector section 58 extending to the left, as viewed from the front, commonly receives exhaust from the burners 13, 14 through communicating combustion chamber outlets 61 of the same, while the other collector 59 similarly is in communication with the combustion chambers of the remaining two burners 15, 16.
  • An exhaust duct 62 extends from the bottom outlet opening 51 at the rear half of the wheel to the rear wall of the box and then upwardly to an outlet 63.
  • An exhaust blower 64 is provided in this duct, also driven by the electric motor 55, with the intake and exhaust blowers 54, 64 thus simultaneously operated in counter flow rotation as indicated by the arrows.
  • the basic control of the unit should be such that the turning on of any burner by adjustment of its valve immediately energizes the two blower motors to establish both the forced circulation and rotation of the regenerator wheel. This initiation should of course also be accompanied by energization of the ignition system and all ignitors can be readily connected to spark upon the turning on of any burner.
  • the wheel transfers heat energy from the exhaust to the incoming air.
  • the exhaust temperature can thereby be reduced to a value permitting it to be exhausted substantially directly to the room, as illustrated, without objection.
  • the infrared radiation from an operating burner is directed against the superimposed portion of the top plate and, when the latter is of the preferred glass described, the radiation is transmitted to the utensil supported on the plate at this location.
  • regenerator wheel the air system components, including the regenerator wheel, are so arranged that there is little added space demand within the top on such account and generally that these should not materially add to the burden of manufacture of such a direct discharge, compact, pressurized smooth top range. While the wheel form of regenerator is well adapted to such incorporation, other heat exchanger configurations, including stationary structures, might be utilized comparably for practical advantage.
  • the ambient air duct 52 is in heat exchange relation to the exhaust duct 61, the two having a common wall, and also that the former is beneath the latter. Accordingly, the air flow in this part of the system aids in the extraction of heat energy from the exhaust and further serves to shield the bottom of the burner box.
  • a compact gas cooking top for incorporation in a range or use as a separate appliance, comprising a rectangular relatively shallow burner box forming an enclosure for the cooking top and having a top opening, a plurality of gas-fired infrared burners in said box, smooth plate means assembled with the box for closing the top opening of the same and supporting thereon utensils to be heated by the burners, air system means within the box including blower means for establishing an inflow of room air to the burners for combustion and an outflow from the box of the combustion gases produced by operation of the burners, and heat exchanger means within the box having portions through which said inflow and outflow proceed in heat transfer relation to preheat the former and cool the latter.
  • a compact gas cooking top for incorporation in a range or use as a separate appliance, comprising a rectangular relatively shallow burner box forming an enclosure for the cooking top and having a top opening, a plurality of gas-fired infrared burners in said box, smooth plate means assembled with the box for closing the top opening of the same and supporting thereon utensils to be heated by the burners, air system means within the box including blower means for establishing an inflow of room air to the burners for combustion and an outflow from the box of the combustion gases produced by operation of the burners, heat exchanger means within the box having portions through which said inflow and outflow proceed in heat transfer relation to preheat the former and cool the latter, and air flow control means between the burners and the exchanger for normally isolating the former from the latter and being operable to direct the flow selectively to the burners.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Gas Burners (AREA)
US726318A 1968-05-03 1968-05-03 Smooth top gas range with regenerator Expired - Lifetime US3494350A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72631868A 1968-05-03 1968-05-03

Publications (1)

Publication Number Publication Date
US3494350A true US3494350A (en) 1970-02-10

Family

ID=24918106

Family Applications (1)

Application Number Title Priority Date Filing Date
US726318A Expired - Lifetime US3494350A (en) 1968-05-03 1968-05-03 Smooth top gas range with regenerator

Country Status (3)

Country Link
US (1) US3494350A (de)
DE (1) DE1922585A1 (de)
GB (1) GB1210478A (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646927A (en) * 1970-06-15 1972-03-07 Tappan Co The Gas smooth top range
US3870031A (en) * 1972-03-24 1975-03-11 Cramer Geb Fa Gas heated grill device
US4421478A (en) * 1981-08-03 1983-12-20 Magic Chef, Inc. High efficiency fuel burner
US4972823A (en) * 1990-02-12 1990-11-27 Stadin Arne H Safety stove and burner assembly
US5209217A (en) * 1992-07-24 1993-05-11 Maytag Corporation Downdraft gas range with dual mode burner system
US5325842A (en) * 1992-07-24 1994-07-05 Maytag Corporation Dual mode downdraft gas range
US5406932A (en) * 1992-10-23 1995-04-18 Canadian Gas Research Institute Sealed combustion range
US5568804A (en) * 1992-10-23 1996-10-29 Canadian Gas Research Institute Sealed combustion range
US5619982A (en) * 1995-07-31 1997-04-15 Maytag Corporation Method and apparatus for operating a downdraft cooking vapor withdrawal system
US20050142509A1 (en) * 2003-12-29 2005-06-30 Kim Young S. Burner assembly for gas burners of radiant heating type
US20060040228A1 (en) * 2003-11-27 2006-02-23 Kim Young S Radiation burner
US20060048767A1 (en) * 2002-11-29 2006-03-09 Dae-Rae Lee Gas radiation oven range
US20060150965A1 (en) * 2005-01-13 2006-07-13 Samsung Electronics Co., Ltd. Exhausting and cooling system for cooking utensil
US20070202451A1 (en) * 2006-01-06 2007-08-30 Lg Electronics Inc. Gas radiation burner
US20110000477A1 (en) * 2007-12-05 2011-01-06 Kwon Jung-Ju Nozzle assembly and cooking appliance
US20120048256A1 (en) * 2010-08-30 2012-03-01 Timothy Scott Shaffer Gas cooktop apparatus
US20140170580A1 (en) * 2012-12-19 2014-06-19 Worgas Burners Limited, A British Company Gas burner
US20170343219A1 (en) * 2016-05-25 2017-11-30 Bsh Home Appliances Corporation Apparatus and method for cooling gas cooktop knobs

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190181A (en) * 1985-05-24 1987-11-11 Waldemar Hryniszak Heat wheel produced from a single recessed strip
DE3703466A1 (de) * 1987-02-05 1988-08-18 Buderus Ag Kochfeld, bestehend aus mehreren, unterhalb einer durchgehenden kochflaeche aus glaskeramik angeordneten gasbeheizten brennstellen
GB2203824A (en) * 1987-04-07 1988-10-26 Waldemar Hryniszak Rotary thermal regenerators
US4766877A (en) * 1987-09-30 1988-08-30 Thermal Systems, Inc. Catalytic space heater
GB8812251D0 (en) * 1988-05-24 1988-06-29 Stelrad Group Ltd Bottles
US7481210B2 (en) * 2004-10-12 2009-01-27 Lg Electronics Inc. Gas range
ITUB20153278A1 (it) * 2015-08-28 2017-02-28 Indesit Co Spa Piano di cottura, preferibilmente ad uso domestico di tipologia perfezionata

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US990884A (en) * 1909-03-20 1911-05-02 Frank S Lang Stove.
US3241542A (en) * 1962-06-04 1966-03-22 South Bend Range Corp Cooking range

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US990884A (en) * 1909-03-20 1911-05-02 Frank S Lang Stove.
US3241542A (en) * 1962-06-04 1966-03-22 South Bend Range Corp Cooking range

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646927A (en) * 1970-06-15 1972-03-07 Tappan Co The Gas smooth top range
US3870031A (en) * 1972-03-24 1975-03-11 Cramer Geb Fa Gas heated grill device
US4421478A (en) * 1981-08-03 1983-12-20 Magic Chef, Inc. High efficiency fuel burner
US4972823A (en) * 1990-02-12 1990-11-27 Stadin Arne H Safety stove and burner assembly
US5209217A (en) * 1992-07-24 1993-05-11 Maytag Corporation Downdraft gas range with dual mode burner system
US5325842A (en) * 1992-07-24 1994-07-05 Maytag Corporation Dual mode downdraft gas range
US5406932A (en) * 1992-10-23 1995-04-18 Canadian Gas Research Institute Sealed combustion range
US5568804A (en) * 1992-10-23 1996-10-29 Canadian Gas Research Institute Sealed combustion range
US5619982A (en) * 1995-07-31 1997-04-15 Maytag Corporation Method and apparatus for operating a downdraft cooking vapor withdrawal system
US5742031A (en) * 1995-07-31 1998-04-21 Maytag Corporation Method and apparatus for operating a downdraft cooking vapor withdrawal systems
US20060048767A1 (en) * 2002-11-29 2006-03-09 Dae-Rae Lee Gas radiation oven range
US7690374B2 (en) * 2002-11-29 2010-04-06 Lg Electronics Inc. Gas radiation oven range
US7757685B2 (en) * 2003-11-27 2010-07-20 Lg Electronics Inc. Radiation burner
US20060040228A1 (en) * 2003-11-27 2006-02-23 Kim Young S Radiation burner
US20050142509A1 (en) * 2003-12-29 2005-06-30 Kim Young S. Burner assembly for gas burners of radiant heating type
US20060150965A1 (en) * 2005-01-13 2006-07-13 Samsung Electronics Co., Ltd. Exhausting and cooling system for cooking utensil
US20070202451A1 (en) * 2006-01-06 2007-08-30 Lg Electronics Inc. Gas radiation burner
US7717105B2 (en) * 2006-01-06 2010-05-18 Lg Electronics Inc. Gas radiation burner
US20110000477A1 (en) * 2007-12-05 2011-01-06 Kwon Jung-Ju Nozzle assembly and cooking appliance
US20120048256A1 (en) * 2010-08-30 2012-03-01 Timothy Scott Shaffer Gas cooktop apparatus
US8757138B2 (en) * 2010-08-30 2014-06-24 General Electric Company Gas cooktop apparatus
US20140170580A1 (en) * 2012-12-19 2014-06-19 Worgas Burners Limited, A British Company Gas burner
US9587826B2 (en) * 2012-12-19 2017-03-07 Worgas Burners, Limited, A British Company Gas burner
US20170343219A1 (en) * 2016-05-25 2017-11-30 Bsh Home Appliances Corporation Apparatus and method for cooling gas cooktop knobs
US10488053B2 (en) * 2016-05-25 2019-11-26 Bsh Home Appliances Corporation Apparatus and method for cooling gas cooktop knobs

Also Published As

Publication number Publication date
DE1922585A1 (de) 1969-11-13
GB1210478A (en) 1970-10-28

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